Home / 27,411.20-37,852.80-21,862.40

Finding the Fourth Proportional to 27,411.20, 37,852.80 and 21,862.40

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Solution

The fourth proportional to 27,411.20, 37,852.80 and 21,862.40 is: 30,190.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,411.20 : 37,852.80 = 21,862.40 : x
  2. Step 2: Convert to fraction form
    27,411.20/37,852.80 = 21,862.40/x
  3. Step 3: Cross multiply
    27,411.20x = 37,852.80 × 21,862.40
  4. Step 4: Simplify right side
    27,411.20x = 827,553,054.72
  5. Step 5: Solve for x
    x = 827,553,054.72/27,411.20
  6. Step 6: Final answer
    x = 30,190.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.